<marc> 1. First we stated
that the simplest form, as used in EARL [2] so far (flat and
implicit):

<marc> <emotion
category="pleasure"/>

<marc> has the charm of
simplicity, but it has disadvantages:

<marc> - the markup gives no
hint regarding the set of categories to use

<marc> - if you want to add
meta-information (e.g., Meta 1: Confidence) specifically to the
category, that is not straightforward to do.

Marc discusses issue 1 from the mail of
Felix.

This is uncontroversial by all.

<marc> 2. An alternative
would be

<marc> <emotion>

<marc>
<category>pleasure</category>

<marc> </emotion>

<marc> but the usage of plain
text in elements (vs. attributes) is to be avoided because our
ML will certainly be used in conjunction with text processing
steps and we certainly wouldn't want to be left with the "
pleasure " string when all markup gets removed.

This item too is uncontroversial.

<marc> 3. We than thought
about ways for making it explicit which set of categories is
used and came up with three different ideas: